Finding the Fourth Proportional to 116,979,909.60, 161,437,318.44 and 64,768,944.84
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Solution
The fourth proportional to 116,979,909.60, 161,437,318.44 and 64,768,944.84 is: 89,383,936.17
Step by Step Solution
- Step 1: Write the proportion equation
116,979,909.60 : 161,437,318.44 = 64,768,944.84 : x - Step 2: Convert to fraction form
116,979,909.60/161,437,318.44 = 64,768,944.84/x - Step 3: Cross multiply
116,979,909.60x = 161,437,318.44 × 64,768,944.84 - Step 4: Simplify right side
116,979,909.60x = 10,456,124,773,157,876 - Step 5: Solve for x
x = 10,456,124,773,157,876/116,979,909.60 - Step 6: Final answer
x = 89,383,936.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.